28 DISCOVERY REPORTS 



St. 1897. 27. xi. 36. 49" 55' 8, 63° 09' 24" W. North-west of Falkland Islands. Net: N 100 B 151-0 m. 



2 specimens. 

 St. WS832. i.xi. 32. 50^49' S, 67 " 55' W. Near the coast of southern Patagonia. Net: N 100 B 75-0 m. 2 specimens. 



This species was briefly described by Browne in 1902, and its identity was more or less doubted until 

 1939, when a more thorough description was given and the drawings, previously made by Browne, 

 were reproduced. There is no doubt now that L. pulchra is a distinct species. The original collection 

 contained five specimens from the Falkland Islands, and no more have been found up to now. According 

 to a note on the label of St. 1897, this species was a 'common form in this line of stations'; it is 

 deplorable, therefore, that so few specimens were preserved. 



The smallest specimen in the original collection was 6 mm. wide and had 17 tentacles. The specimen 

 from St. 719 is in a still younger stage, being 2 mm. wide and 2-5 mm. high; the radial extensions of 

 the stomach are short, but in their lateral walls the gonads are beginning to appear as tiny folds. 

 There are four fully developed perradial tentacles, spirally coiled, and four interradial bulbs which are 

 thick and conical with a small pointed tip. Three cordyli are present between each successive pair of 

 tentacles and bulbs, each of them mounted on a small bulb, the median one somewhat larger than the 

 others. An ocellus is seen on the adaxial side of the tentacular bulbs as well as on the bulb of the 

 median cordylus in each group. 



The other specimens are 15-19 mm. in diameter, but it should be remarked that in the specimens 



from Station 1897 the umbrella margin is much contracted, so that the diameter is only slightly 



larger than the height of the umbrella. In the preserved condition the specimens have the following 



dimensions : 



Station WS 832 1897 



The radial lobes of the stomach are not quite as long as in the type specimen, reaching along slightly 

 more than the proximal half of the gonads. The transverse folds of the gonads (PI. IV, fig. 7) are 

 strongly developed and very regular, slowly decreasing in width from the proximal to the distal end 

 of the gonad. The terminal ends of the radial canals between the gonads and the ring-canal are very 

 short. The marginal organs agree with the original description except that the cordyli are less dis- 

 tinctly club-shaped, evenly increasing in width towards their distal end, and, in contradistinction to 

 the statement in the earlier description, they are provided with numerous nematocysts in their outer- 

 most parts. 



Distribution. This species has only been found in the immediate neighbourhood of the Falkland 

 Islands, and between these islands and the coast of Patagonia. 



Ptychogena antarctica Browne 19 10 

 (PI. IV, fig. 8) 



1910 Ptychogena antarctica Browne, p. 29. PI. 2, figs. 6-9. 

 1912a Ptychogena antarctica Vanhoffen, p. 365. 



Occurrence: St. 1959. 8. ii. 37. Scotia Bay Landing, South Orkney Islands. Found floating on surface very close 

 to the shore, i fragmentary specimen. 



The few specimens of this medusa observed up to now have all been in a bad and mutilated condition. 

 Browne examined three specimens from Cape Adare and one from McMurdo Sound, and if the 

 identification is correct, Vanhoifen saw a fifth fragmentary specimen from the Gauss Station. The 



